I've read in a few threads that on beta OS 4.5 (1) people are having problems with google maps, and (2) AT&T people are having trouble with blackberry maps.

I have solutions to both problems. Tested on an 8820 running 4.5.0.18 and 4.5.0.27 and an 8310 running 4.5.0.37. Even thought Google Maps and BB Maps overlap to a large extent, I like to have both applications working on my device -- google maps has better search capability, bb maps can be set to track up
instead of north up, so it's better for navigating.

1. Google Maps. The issue reported is that the application hangs after you give it permission to access the radio information. Eventually, the app times out, and it's never usable. I experienced this as well. The solution I found is to downgrade to 4.2.2, install and run google maps, make sure it works, and then upgrade to 4.5 and let BB manager back up all databases, etc. This carries the permissions over and will allow google maps to run.

If this doesn't work for you here are some OTA links for an older version of Google Maps that will work (no cell triangulation, though):

2. BB Maps. The issue is that the version of BB maps that comes with 4.5 requires a service book, which at&t refuses to push down (or, more accurately, pushes down blank service books). The solution, of course, is to load an older version of BB Maps. Replace the LBS.alx file with the file from a 4.2 installation and copy all of the modules (cod files) with "lbs" in them from the 4.2 installation to the 4.5 java folder. Then run app manager.

EDIT: After upgrading my 8820 from 4.5.0.18 to 4.5.0.37, then installing BBMaps from 4.2.2., I got an error message "Maps is disabled" when trying to open BB Maps. This was because the rogue AT&T "blank" service book was pushed down to my device after I upgraded, but before I replaced the 4.5 version of Maps with the 4.2.2 version. The solution is to uninstall BBMaps, delete the rogue service book (Options>>Advanced>>Service Books>> delete the one that says Blackberry Maps), then reinstall the older version of BB Maps.

I've read in a few threads that on beta OS 4.5 (1) people are having problems with google maps, and (2) AT&T people are having trouble with blackberry maps.

I have solutions to both problems. I tried these only on my at&t 8820 and 4.5.0.18, but I see no reason why they wouldn't work elsewhere. Even thought they overlap to a large extent, I like to have both applications working on my device -- google maps has better search capability, bb maps can be set to track up
instead of north up.

1. Googlemaps. The issue reported is that the application hangs after you give it permission to access the radio information. Eventually, the app times out, and it's never usable. I experienced this as well. The solution I found is to downgrade to 4.2.2 (I was using t-mobile 4.2.193), install and run google maps, make sure it works, and then upgrade to 4.5 and let BB manager back up all databases, etc. This carries the permissions over and will allow google maps to run.

2. BB Maps. The issue is that the version of BB maps that comes with 4.5 requires a service book, which at&t refuses to push down (or, more accurately, pushes down blank service books). The solution, of course, is to load the older version of BB Maps. Replace the LBS.alx file with the file from a 4.2 installation and copy all of the modules (cod files) with "lbs" in them from the 4.2 installation to the 4.5 java folder. Then run app manager.

Just to let everyone know. BBmaps works and the gps chip is still functional on this mod. Cheers to the author for making this discovery. The only drawback I can see as of yet, was the reboot time was a little long.

And what about me ? It seems it does not work all the time - Version is 0.37
There must be more then the servicebook.
My 2 devices are both on the same Carrier ( eplus/KPN ). Eplus does send a valid LBS service Book.

8800 works straight out of the box with G-Maps and BB-Maps
8310 does work with GPS and G-Maps, But when I install BB-Maps, the GPS functionality is lost, rendering all Maps applications useless.

After upgrading my 8820 from 4.5.0.18 to 4.5.0.37, then installing BBMaps from 4.2.2., I got an error message "Maps is disabled" when trying to open BB Maps. This was because the rogue AT&T "blank" service book was pushed down to my device after I upgraded, but before I replaced the 4.5 version of Maps with the 4.2.2 version. The solution is to uninstall BBMaps, delete the rogue service book (Options>>Advanced>>Service Books>> delete the one that says Blackberry Maps), then reinstall the older version of BB Maps.

I recommend you download GM2.2, it seems to be "snappier" grabbing GPS info. Once the tower-based location service support had launched, I had experienced a 1-2 minute delay before it zeroed in on GPS. This was the case with 4.1, 4.2 and 4.3, not just with 4.5. Download the new version as soon as you can!

Also, for the troubleshooters out there, had no issues w/Google Maps on 4.5.0.37 on my 8110 OR 4.5.0.1 on my 8310. When I first switched to 4.5, I was rocking Google Maps 2.0, then 2.1. I never had to do any tricky OS edits, etc. I hope this helps...

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Hit List: 8700, 7130, 8100, 8800, 8310, 8110
Can he be stopped??? Currently rocking 4.5 at my own risk...